Anne Sairanen

Site characteristics of Scots pine stands infected by Gremmeniella abietina in Central Finland. 1: Mineral soil sites

Sairanen A. (1990). Site characteristics of Scots pine stands infected by Gremmeniella abietina in Central Finland. 1: Mineral soil sites. Acta Forestalia Fennica no. 216 article id 7663. https://doi.org/10.14214/aff.7663

Abstract

Mineral soil sites where Scots pine (Pinus sylvestris L.) were suffering from Gremmeniella abietina die-back (Lagerb.) M. Morelet. were characterized and classified in Central Finland. The tree stand, ground vegetation, soil type and site topography were described in 163 sample plots in 16 stands. The sites were classified according to system developed by Cajander and numerically using TWINSPAN analysis based on the ground vegetation. The site topography of severely damaged stands was checked from colour infrared aerial photographs. The disease was most severe in depressions and frost pockets. Apart from topography no significant correlations were found between disease severity and site factors. No typical vegetational pattern of forest type of the severely affected stands could be detected. Most of the stands were growing on medium-coarse, unfertile soil with a rather thick humus layer.

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Keywords
Pinus sylvestris; Scots pine; damage risk; Gremmeniella abietina; site classification; pathogens; Ascocalyx abietina

Published in 1990

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Available at https://doi.org/10.14214/aff.7663 | Download PDF